Switch business electricity in the UK: a practical guide
Compare business electricity deals, understand contracts and meters, and switch with confidence. Get a quote in minutes with whole-of-market support from EnergyPlus.
- Check your meter type (e.g. single-rate, E7, half-hourly) and contract end date
- Compare like-for-like: unit rate, standing charge, contract length, and pass-throughs
- Switch with minimal disruption—your supply typically stays on throughout
Estimates vary by location, usage, meter type and contract terms. Always check your current contract for end dates and exit fees.
Fast answer: how to switch business electricity
Most UK businesses can switch electricity by comparing contracts, choosing a new tariff, and agreeing a start date (often aligned to your current contract end date). Your electricity typically stays on—there’s usually no site visit for the switch itself.
What you’ll need
- Business name and supply address
- Postcode and (ideally) MPAN/meter details
- Estimated annual consumption (kWh) or recent bills
- Contract end date / notice period (if known)
What to compare
- Unit rate (p/kWh) and standing charge (p/day)
- Contract length (e.g. 12/24/36 months)
- Fixed vs variable vs flexible procurement
- Pass-through charges and billing frequency
Common deal-breakers
- Early termination / exit fees
- Auto-rollover or out-of-contract rates
- Half-hourly (HH) profile and demand peaks
- Metering issues (wrong meter type / MPAN)
Quick tip: If you’re near the end of contract, it can help to start comparing early. Some suppliers allow you to agree rates in advance (start date later), but availability and lead times vary by supplier and meter type.
Get a business electricity quote (whole-of-market support)
Tell us a few details and we’ll match you with suitable business electricity options based on your meter type, location and usage. If you’re unsure about anything (MPAN, half-hourly, renewal date), you can still submit—our team can help fill the gaps.
What happens next: We’ll review your details and contact you to confirm your supply information and preferences before recommending options. No supply interruption is expected from switching; it’s an administrative transfer.
What to have to hand (optional but helpful)
- MPAN (electricity supply number)
- Usually on your bill. Helps confirm the exact supply being priced.
- Annual usage (kWh)
- A recent bill may show annual consumption or an estimate. More accurate usage = more accurate quotes.
- Contract details
- End date, notice period, and any termination terms to avoid unexpected fees.
Request your quote
How switching business electricity works (step-by-step)
- Check your current contract. Find your end date, notice period, and any early termination fee. If you’re out of contract, you may be on higher variable rates.
- Confirm your supply details. Meter type, MPAN, and whether you’re half-hourly (HH) affects how suppliers price your electricity.
- Compare offers on a like-for-like basis. Look beyond the headline unit rate—standing charges, pass-throughs, billing terms, and contract length matter.
- Agree a contract and start date. Many switches are timed for the day after your current contract ends to minimise risk of exit fees.
- Switch completes (administrative transfer). Your network stays the same; you’re changing supplier and contract terms.
- First bill & meter reads. Take a meter reading on the changeover date if possible (or confirm smart/HH reads are being collected) to reduce billing disputes.
Caveat: If your business is on a deemed/variable contract, switching can still be straightforward, but the pricing and terms can differ from fixed deals. Complex sites (multi-meters, HH, high demand peaks) may need a more tailored approach.
Compare business electricity deals: what to look at
A “good” deal depends on your risk tolerance, usage pattern, and contract timing. Use the table below to compare the main routes businesses take when switching.
| Option | Best for | Watch-outs | What to compare |
|---|---|---|---|
| Fixed contract (12–36 months) | Businesses that want budget certainty and predictable bills. | Exit fees can apply if you leave early; check auto-renewal terms. | Unit rate, standing charge, contract length, pass-through treatment, billing/reading terms. |
| Variable / deemed / out-of-contract | Short-term stopgap when you need supply in place quickly. | Prices can change; often more expensive than fixed deals. Terms vary by supplier. | How prices are set, notice to switch, admin fees, standing charges, read/billing cadence. |
| Flexible procurement (for larger users) | Higher-usage sites (often HH) wanting to spread buying across time. | More complex; may include management fees and separate pass-through charges. | Fee schedule, reporting, risk approach, pass-throughs, imbalance/DUoS treatment. |
Decision checklist: this suits you if…
- You know your contract end date and can switch at renewal
- You can estimate usage (even roughly) and confirm meter type
- You want a clear price structure (unit rate + standing charge)
- You’re happy to commit to a term for price certainty
It may not suit you (yet) if…
- You’re mid-contract and exit fees would outweigh benefits
- Your site has multiple MPANs/meters you can’t currently reconcile
- You’re unsure who is contractually responsible (landlord/tenant)
- You’ve recently moved in and don’t have billing history (we can still help, but quotes may be less precise)
Two realistic switching scenarios (with numbers)
These examples are illustrative to show how to compare like-for-like. Rates are estimated and do not represent an offer. Your actual prices depend on supplier, credit checks, meter type, payment method and market conditions.
Scenario A: small office on a fixed deal
- Annual use: 12,000 kWh
- Current (estimated): 28p/kWh + 60p/day standing charge
- New (estimated): 25p/kWh + 55p/day standing charge
Estimated annual cost now: (12,000 × £0.28) + (365 × £0.60) = £3,360 + £219 = £3,579
Estimated annual cost new: (12,000 × £0.25) + (365 × £0.55) = £3,000 + £201 = £3,201
Estimated difference: ~£378/year before VAT and any pass-throughs/fees.
Assumes usage and rates remain constant and excludes potential pass-through charges, climate levies and supplier-specific fees.
Scenario B: light manufacturing with higher demand
- Annual use: 95,000 kWh
- Current (estimated): 24p/kWh + 85p/day standing charge
- New (estimated): 22.6p/kWh + 95p/day standing charge
Estimated annual cost now: (95,000 × £0.24) + (365 × £0.85) = £22,800 + £310 = £23,110
Estimated annual cost new: (95,000 × £0.226) + (365 × £0.95) = £21,470 + £347 = £21,817
Estimated difference: ~£1,293/year before VAT and pass-throughs.
Higher-usage sites can be more sensitive to small unit-rate changes, but network charges and HH profile can materially affect totals.
Important: Business energy bills can include components beyond unit rate and standing charge (e.g. network and policy costs). Ask for a clear breakdown and whether charges are fixed or pass-through where applicable.
Costs, exclusions and common pitfalls when switching
Switching isn’t just about chasing a lower unit rate. The points below are where UK businesses most often get caught out—especially at renewal.
Exit fees & notice periods
Many fixed business contracts include termination charges if you leave early or miss notice windows. Always confirm end date and required notice in writing.
Auto-rollover & out-of-contract rates
If your contract ends and you don’t renew, you may move onto variable/deemed rates. These can change and may be higher than fixed alternatives.
Meter type mismatch
A quote can be delayed if the supply is HH, multi-rate, or the MPAN/address details don’t match industry records. A recent bill helps resolve this quickly.
Pass-through charges
Some business contracts pass certain costs through at cost rather than fixing them. Ask what’s included in the unit rate and what can vary during the term.
VAT and eligibility
Business electricity is usually charged with VAT at the applicable rate for your circumstances. Ensure your billing status is correct, especially for mixed-use sites.
Landlord/tenant responsibilities
If you’re not the named account holder (or it’s a managed building), you may need authorisation to switch. Clarify who holds the contract before progressing.
Billing accuracy tip: Take and store dated meter photos around the switch date (or keep HH/smart meter read confirmations). It can help resolve opening/closing read disputes faster.
Switch business electricity: FAQs
Will my electricity go off when I switch supplier?
Typically no. Switching is usually an administrative change of supplier, while the physical network stays the same. Any interruption is unlikely and would be unrelated to the switching process itself.
How long does it take to switch business electricity?
Timescales vary by supplier, meter type, and whether you’re switching at renewal. It can be quick for straightforward sites, but allow extra time if details need verifying (MPAN, HH status, multi-meters) or if you’re aligning to a contract end date.
Can I switch if I’m in a fixed contract?
You can explore options, but switching before your end date may trigger exit fees. A common approach is to secure a future start date that begins when your current contract ends—availability depends on the supplier and your setup.
What’s an MPAN and do I need it to switch?
An MPAN (Meter Point Administration Number) identifies your electricity supply point. It’s very helpful for accurate quoting and ensuring the correct site is switched, but if you don’t have it, you can still start the process using your business address and postcode.
Do business energy deals have a cooling-off period?
Business contracts don’t always have the same protections as domestic energy. Cooling-off rights depend on the contract and how it’s agreed. Always review the terms (including termination and renewal clauses) before you commit.
What’s the difference between fixed, variable and deemed rates?
A fixed contract sets your core rates for a defined term. Variable rates can change. Deemed rates may apply when you move into premises without agreeing a contract and supply is provided by the incumbent supplier—terms vary, so it’s often worth comparing alternatives once your account is set up.
I’ve just moved premises—can I switch straight away?
Usually you’ll start on a deemed contract with the current supplier at the site until you agree new terms. You can often compare and arrange a switch once you’ve confirmed you’re the responsible party and the account details are established.
Does having a smart or half-hourly meter change what I can get?
It can. Half-hourly (HH) sites are typically priced with more attention to usage patterns and peak demand; some contracts may include different structures or pass-throughs. Smart meters can improve reading accuracy, but tariffs still depend on supplier appetite and your usage profile.
Not sure which FAQ applies? Use the quote form above and add “Not sure” for meter type—our team can help confirm your setup using your bill and supply details.
Trust, methodology and sources
Editorial ownership
- Written by: EnergyPlus Editorial Team
- Reviewed by: Energy Specialist
- Last updated: March 2026
We aim to explain business electricity switching in plain English, including where costs can vary and where contract terms matter most.
How we assess “switching” advice on this page
This guide is designed to be accurate across typical UK microbusinesses and SMEs. Because supplier pricing changes frequently, we focus on decision-making that stays relevant even when the market moves.
- Assumptions in our examples: single-site supply, consistent annual usage, and headline rates applied evenly across consumption.
- What we include in calculations: unit rate (p/kWh) + standing charge (p/day) only, to show a like-for-like comparison method.
- What we may not include: supplier- and site-specific pass-throughs, network charges, capacity/availability charges, and any additional fees that can apply to HH or complex sites.
- Limitations: Your final price can differ due to credit checks, payment terms, meter configuration, consumption profile, and market movements between quote and contract acceptance.
Transparency: EnergyPlus is a comparison and support service. We’ll always encourage you to review key terms (end dates, renewal clauses, termination fees, pass-throughs) before you agree a contract.
Reputable UK sources used for consumer and regulatory context
Supplier terms and market pricing can change. Always confirm the current contract terms and the full quote breakdown before proceeding.
Ready to switch business electricity?
Get a tailored quote and clear guidance on contract terms, meter types and start dates—so you can switch with confidence.
If you’re mid-contract, we can still help you plan ahead for renewal and explain any potential exit fees before you act.
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